34 
THE VOYAGE OF H.M.S. CHALLENGEE. 
Chirodota australiana, Stimpson, 1856. 
Tentacles ten, each with ten serrulated digits. Body with two kinds of papillae, the 
smaller, spread everywhere, consisting of accumulations of spicules which are 
hooked at one extremity and slightly bent at the other ; the larger, white ones 
consist of accumulations of wheels and are scattered, quite thickly, along one side 
of the body only. 
Habitat . — Port Jackson (Stimpson). 
C. Wheels alone or in company with minute grains or half-moon-shaped bodies. 
I. Tentacles ten. 
Chirodota diinedinensis, Jeffrey Parker, 1881. 
Each of the tentacles with about ten digits. Calcareous spicules in the form of 
wheels. Description not very satisfactory. 
Habitat . — Otago Harbour, Hew Zealand (Parker). 
II. Tentacles twelve. 
1 . Digits of the tentacles numerous, about twenty. 
Chirodota violacea, Peters, Muller, 1849, 1850, 1854. 
Wheel-papillas arranged in five irregular series. Besides the wheels, numerous 
minute grains in the shape of half-moons. One or more Polian vesicles. 
Habitat . — Mozambique (Muller). 
2 . Digits of the tentacles few, rarely more than thirteen. 
Chirodota Icevis {Holothuria), Fabricius, 1780; Grube, 1850; Liitken, 1857; Duncan and 
Sladen, 1881. Holothuria pellueida, Vabl, 0. F. Miiller, 1788-1806. Pentacta 
pellucida, Jseger, 1833. Pentacta Icevis, Jaeger, 1833. Cucumaria pellueida. 
Plain ville, 1834. Cucumaria Icevis, Blainville, 1834. Dactylota pellucida, 
Brandt, 1835. Dactylota Icevis, Brandt, 1835. (?) Thyonidium pellucidum, 
Sars, 1851. (f) Synapta coriacea, Agassiz, 1852. if) Trochinus pallidus, 
Ayres, 1854. (?) Chirodota tigillum, Selenka, 1867. (?) Chirodota typica, 
Selenka, 1867. 
Each of the tentacles with ten to twelve digits. Wheel-papiUae twenty to thirty in 
each of the three dorsal interambulacra, three to twelve in the two ventral inter- 
ambulacra, the two latter being always naked in their middle. Polian vesicles 
several (ten to fourteen or more). Neither Sars nor Duncan and Sladen seem 
to have found any other deposits in the integument than wheels. 
Habitat. — North-west coast of Norway at Nordlanden and Lofoten (Vahl, Sars), White 
Sea (Jarzynsky), Spitzbergen (Ljungman), Greenland (Liitken, Duncan and Sladen, 
